#ifndef _public_h
#define _public_h
#define DM P0

#include "reg52.h"

void delay_10us(unsigned int x);
void delay_1ms(unsigned int x);
sbit K1 = P3^1;
sbit K2 = P3^0;
sbit K3 = P3^2;
sbit K4 = P3^3;
sbit wmC = P2^4;
sbit wmB = P2^3;
sbit wmA = P2^2;
#endif